package ooday03;

public class InterfaceDemo {
    public static void main(String[] args) {

    }
}




interface Inter{
    public abstract void show();//完整写法
    void test();//默认public abstract
    //void say(){}编译错误，抽象方法不能有方法体



    interface Inter1{
        void show();
        void test();
    }
    class Aoo implements Inter1{
        public void show(){}//重写接口中的方法时，必须加public
        public void test(){}
    }





}
interface Inter2 {
    void show();
}
interface Inter3{
    void test();
}
abstract class Boo{
    abstract void say();
}
class    Coo extends  Boo implements Inter2,Inter3{
    public void show(){}
    public void test(){}
    void say(){}
}
